While it seems like every block in the city is host to a construction site throwing up some luxury condo building or pricey rentals, not all of these developments are created equal. Following up on their last infographic which rounded up the city’s top five most expensive new developments, the data gurus over at CityRealty have culled an even more extensive list which pinpoints the 12 priciest structures going up right now. While the number of zeros that follow their combined $20,000,000,000 sellout will make your head hurt, what’s even more mind-boggling is that these 12 buildings alone will count for nearly HALF of the money that’ll be generated by the 200+ condo projects underway in Manhattan.